Rigging Refresher - Part three 

Write down your answers on a piece of paper then fill out the form on the right with your answers to the questions.

After you submit the form, we will display the correct answers to the right of the questions (and email you a copy of your answers with the correct answers as well). 

1. For Crosby screw pin or bolt type shackles 3 inch diameter and smaller. If subjected to a side load of 45 degrees from vertical. The shackle will lose how much of its working load limit? 

A. No loss of W.L.L.

B. 30 percent loss of W.L.L.

C. 50 percent loss of W.L.L. 

 

 

 

2. Which type or style of eyebolt is allowed for angular loading applications? 

A. Shouldered Eyebolts

B. Non-shouldered Eyebolts 

 

 

 

 

 

 

 

3. How tight do you tighten a screw pin shackle? 

A. Hand tight and back off 1⁄4 turn

B. Hand tight and back off 1⁄2 turn

C. Screw pin threads shall be fully engaged.

D. None of the above 

 

 

 

4. The maximum included angle for Crosby shackles 3” (120 ton and smaller) is how much? 

A. 90 Degrees

B. 120 Degrees

C. 180 Degrees

D. 360 Degrees